The Paranoia Paradox

Mission 0: The Information Problem. Part of the Quantum Courier Service, a free course from the Oxford University Quantum Information Society.

As if defending against invisible wiretaps wasn't enough, we must also contend with the fact that the physical universe is an incredibly messy place to send a secret.

When you hit "send" on a highly classified transmission from Oxford to a safehouse in London, your data doesn't magically teleport. Those fragile 1s and 0s are forced into a terrifying physical marathon through cables buried in freezing mud and atmosphere thick with storms. Nature loves chaos, and this interference is called Noise.